#!/bin/bash
SCORE=$1

if [ $SCORE -ge 90 ]
then
    echo 'excellent'
elif [ $SCORE -ge 80 ]
then
    echo 'good'
elif [ $SCORE -ge 70 ]
then
    echo 'common'
elif [ $SCORE -ge 60 ]
then
    echo 'pass'
elif [ $SCORE -ge 0 ]
then
    echo 'no pass'
else
    echo 'error'
fi